diff --git a/src/Libraries/Microsoft.Extensions.AI.Abstractions/CHANGELOG.md b/src/Libraries/Microsoft.Extensions.AI.Abstractions/CHANGELOG.md
index 97d8e9b5a29..b34c143af77 100644
--- a/src/Libraries/Microsoft.Extensions.AI.Abstractions/CHANGELOG.md
+++ b/src/Libraries/Microsoft.Extensions.AI.Abstractions/CHANGELOG.md
@@ -2,10 +2,18 @@
 
 ## NOT YET RELEASED
 
+- Updated `HostedMcpServerTool` to allow for non-`Uri` server addresses, in order to enable built-in names.
+- Updated `HostedMcpServerTool` to replace the header collection with an `AuthorizationToken` property.
+
+## 9.10.0
+
 - Added protected copy constructors to options types (e.g. `ChatOptions`).
+- Added `[Experimental]` support for background responses, such that non-streaming responses are allowed to be pollable and responses / response updates can be tagged with continuation tokens to support later resumption.
+- Updated `AIFunctionFactory.Create` to produce better default names for lambdas and local functions.
+- Fixed `AIJsonUtilities.DefaultOptions` to handle the built-in `[Experimental]` `AIContent` types, like `FunctionApprovalRequestContent`.
+- Fixed `ToChatResponse{Async}` to factor `ChatResponseUpdate.AuthorName` into message boundary detection.
+- Fixed `ToChatResponse{Async}` to not overwrite `ChatMessage/ChatResponse.CreatedAt` with older timestamps during coalescing.
 - Fixed `EmbeddingGeneratorOptions`/`SpeechToTextOptions` `Clone` methods to correctly copy all properties.
-- Fixed `ToChatResponse` to not overwrite `ChatMessage/ChatResponse.CreatedAt` with older timestamps during coalescing. 
-- Added `[Experimental]` support for background responses, such that non-streaming responses are allowed to be pollable, and such that responses and response updates can be tagged with continuation tokens to support later resumption.
 
 ## 9.9.1
 
diff --git a/src/Libraries/Microsoft.Extensions.AI.AzureAIInference/CHANGELOG.md b/src/Libraries/Microsoft.Extensions.AI.AzureAIInference/CHANGELOG.md
index f3e0a7b96d5..69244226a92 100644
--- a/src/Libraries/Microsoft.Extensions.AI.AzureAIInference/CHANGELOG.md
+++ b/src/Libraries/Microsoft.Extensions.AI.AzureAIInference/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Release History
 
-## NOT YET RELEASED
+## 9.10.0-preview.1.25513.3
+
+- Updated to accommodate the additions in `Microsoft.Extensions.AI.Abstractions`.
 
 ## 9.9.1-preview.1.25474.6
 
diff --git a/src/Libraries/Microsoft.Extensions.AI.OpenAI/CHANGELOG.md b/src/Libraries/Microsoft.Extensions.AI.OpenAI/CHANGELOG.md
index 589790cd8ee..6438aa924a7 100644
--- a/src/Libraries/Microsoft.Extensions.AI.OpenAI/CHANGELOG.md
+++ b/src/Libraries/Microsoft.Extensions.AI.OpenAI/CHANGELOG.md
@@ -2,7 +2,14 @@
 
 ## NOT YET RELEASED
 
-- Fixed issue with IChatClient for Assistants API where a chat history including unrelated function calls would cause an exception.
+- Updated `IChatClient` for Responses API to support connectors with `HostedMcpServerTool`.
+- Updated to accommodate the additions in `Microsoft.Extensions.AI.Abstractions`.
+
+## 9.10.0-preview.1.25513.3
+
+- Fixed issue with `IChatClient` for the OpenAI Assistants API where a chat history including unrelated function calls would cause an exception.
+- Fixed issue with `IChatClient` for the OpenAI Assistants API sending a tool in `ChatOptions.Tools` that had the same name as a function configured with the Assistant would cause an exception.
+- Updated to accommodate the additions in `Microsoft.Extensions.AI.Abstractions`.
 
 ## 9.9.1-preview.1.25474.6
 
diff --git a/src/Libraries/Microsoft.Extensions.AI/CHANGELOG.md b/src/Libraries/Microsoft.Extensions.AI/CHANGELOG.md
index 987afd4b437..e143b74b437 100644
--- a/src/Libraries/Microsoft.Extensions.AI/CHANGELOG.md
+++ b/src/Libraries/Microsoft.Extensions.AI/CHANGELOG.md
@@ -2,7 +2,13 @@
 
 ## NOT YET RELEASED
 
+## 9.10.0
+
 - Added `OpenTelemetrySpeechToTextClient` to provide Open Telemetry instrumentation for `ISpeechToTextClient` implementations.
+- Augmented `OpenTelemetryChatClient` to output tool information for all tools rather than only `AIFunctionDeclaration`-based tools.
+- Fixed `OpenTelemetryChatClient` to avoid throwing exceptions when trying to serialize unknown `AIContent`-derived types.
+- Fixed issue with `FunctionInvokingChatClient` where some buffered updates in the face of possible approvals weren't being propagated.
+- Simplified the name of the activity span emitted by `FunctionInvokingChatClient`.
 
 ## 9.9.1